How much do you love your city? Enough to spend 20 years pacing its streets, mapping their layout, measuring its size, surveying the height and width of its buildings, and then painstakingly carving the entire thing into solid marble? No? Well, then Yutaka Sone loves New York more than you, and he’s not even from there.

Across two decades the Japanese artist studied photographs, maps, charts, Google Earth, and even took a couple of flights in a helicopter to comprehensively capture the entire Manhattan Island in one solid, nine-by-three-foot, two-and-a-half ton piece of white marble. The work was unveiled last week at New York’s Park Avenue Armory art fair. If you need directions on how to get there, we imagine Yutaka can probably help with that.